Automatically-controlled electric system



' F" W. PARKINSON AND C. M. KIMBLL. AUTOMATICALLY CNTROLLED .ELECTHICS-YSTEM.

AP'PucAnoN man No'v. Isl-1916.'

` 1,330,135. limma Feb. 10,1920.

MM 4MM momfra ,A UNITED sTATEs ra n i l' a ii cinema@ 'FLOYD PARKINSON, 0F PEOIELII,y AND CLARENCE M. KIMBALL, OF DRGs-IZMIR,

ILLINOIS.

` AUTOMATICLLY-CONTROLLED ELECTRIC SYSTEM.

,and Decatur, in the county of AMacon and State of Illinois, respectively, have invented certain new and useful Improvements in Automatically-Controlled Electric Systems, ot which the following is a specification'.- 1

` Our invention relates to improvements in "automatically controlled electric systems for lighting or power purposes, and it consists in the' combinations, constructions and arrangements herein described and claimed;

An object of our invention is to provide a system which vmay be used in isolated places` such as suburban or country homes, in which a generator is driven by an int'ernal combustion engine for producing the current, and inwhich the mere turning'on or turning o''f ot lights or other electric device making use ot the current in the mains', will start the ,systemI Iin operation, the turning oil ofthe lights effecting the stopping of the engine and generator, and the restoration of the system to a normal condition of rest. c f" Y Our invention is illustrated in the accompanying drawing, which is a diagrammatic view. showing the general arrangement ot the system.

In carrying out our invention we provide a generator A which is a 125 voltiiatfcompounded generator of sufficient K'. lV. size to meet the requirements of any particular installation. A battery B is provided, this battery being preferably a 12 volt battery having a charging rate corresponding to the tull load ampere rating of the generator used. At C we have shown a relay which is operated initially .by a coil D and also has a holding coil E. At F is another relay, and at (l and 'Il are relays; both are adapted toact. on an armature K. The mains are shown at L and L. and the lamps at M.

The operation .of the system will be best understood by taking up the action ot the various parts ot the apparatus in the'order in which they occur. Let us assume that the apparatus is in the position shown in the drawing, with the engine, I idle. Consider now ther action when one or more of the lamps M. is turned on; current will from the battery B through the wire 5 Specification of Letters Patent.

Patented Ideen Mi', .'tvm

-Applcation led November 15, 1916. Serial No. 131,578.

erator A, Wire 2, lamp M, wire 3, contact di of relay C, contact 5 of the same relay, conu tact 6, wire 7, coil 8 of the relay G, wire@ and wire 10 to battery B. The energization o f the coil 8 of the relay G will close battery circ-uit from the battery B through wire 11;,

the core of the coil, armature I, wire 5.2, f coll 13 of relay F, wn'e 14, wire 15 to battery. The operation of the relay Il will close the circuit through the starting motor S as follows: battery B, wire 11, 16, contactsofthe relay F, 17, coil 18 of relay C, starting motor S, Wire 19, wire 15 to battery.

The energization of the coil D of the relay C- will cause the latter to operate, as to connect the contacts and 2O and to brea the contacts 5 and 6, and also close'the contacts-21 and 22. rheV breaking of the con tacts 5 and 6 will conse the denergization of thecoil S of the relay G, but the armature being pivoted oil" center will remain in engagement with the core of the coil. closing of the contacts 21 and 22 will close an ignition circuit. from battery B' through wire 23. Contact contact 21, tire 24, wire 24', to the spark plugs ot the engine, wire 1S).` wire 15 to the battery. The closing of the contacts l and 2() will venergize the coil E over the lamp circuit as tar as the contact Jr. and then-ce to the Vbattery by way et contact 20. coil E and wirc 10. The coil E is a holding coil for keepingthe relay C closed.

The operation described starts the engine and the generator, and as soon as the generatorA voltage rises to a predetermined value, the coil 2.3 of the relay H is energized sufficient to attract the armature K This breaks the circuit of the relay F. allowing the ar inatnre to retract so as to break the starting motor circuit and to dcnergize the coil D. The holdingl coil E. however. isystill being energized so that the switch C is still closed.

The geiwrator'supplies the lamps over two circuits as tollows:

(a.) From the. generator A through wire `1. batter)v l, wire 10; coil E, contacts QCP-4,

wire 3 Ii. lamps lvl, L and by wire 2 back to thc generator.

(L) Generator A to wire 1, wire 11, wire 23. contacts Z2-Jil. wire 24, shunt W, wire l. il

3. L. lamps M, L andlnq wire 2 back to the closed, thus restoring the apparatus to the normal condition of rest.

ln order to prevent the battery B from becoming overcharged, an adjustable shunt TV is connected in parallel with the battery, the one connection being outside of the contacts 21-22 to prevent acting as a shunt circuit troni the battery when the plant is not in operation.

he arrangement described allows the use of a standard 125vclt generator. lit eliniinates the use oit a 125 volt battery, but by means of the automatic features ,makes power available at all times and can be con trol ed from any connection which is made to the main Wiring circuit. The arrangement of the battery in vseries with the main circuit enables the battery to be charged without the use or" complicated battery relays and allows a simple sericS mot-or to be used for starting purposes.

lle claim: y

l. ln an auton'iatically controlled electric system, a generator, an internal combustion engine having" an electrical igniting circuit .and being arranged to drive the generator, an electric starter, a battery, a main power or lighting circuit, connections including a relay between said main circuit-and said battery, means for closing and opening the circuit ot' the electric starter, Said ineanS being controlled by said relay, and means disposed in the circuit o1c the electric starter for controlling the ignition circuit of the engine. l

ln an automaticallyv controlled electric system, a generator, an internal combustion engine having an electrical ignitingcircuit and being arranged to drive the generator, an electric starter, a battery, a main power or lighting' circuit, connections including a relay between lSaid inain circuit and said battery, a relay for closing and opening'the circuit ot the electric starter, Said last named relay being controlled by said first named relay, a third relay having a coil disposed in series with the electric starter, the ignition circuit of the engine being controlled by the last named relay, for said last named relay actuated by a flow of current in the main circuit. 'i 'FLOYD lV. PARKINSON.

CLARENCE' M. KIMBALL. Vlitnesses T. K. B01-rons G. C. BABEL.

and a holding coil 

